diff --git a/classes/Carrier.php b/classes/Carrier.php
index b5e2dd193..f63adfbb6 100644
--- a/classes/Carrier.php
+++ b/classes/Carrier.php
@@ -151,9 +151,15 @@ class CarrierCore extends ObjectModel
 
 	protected	$webserviceParameters = array(
 		'fields' => array(
-			'id_tax_rules_group' => array(),
 			'deleted' => array(),
 			'is_module' => array(),
+			'id_tax_rules_group' => array(
+				'getter' => 'getIdTaxRulesGroup',
+				'setter' => 'setTaxRulesGroup',
+				'xlink_resource' => array(
+					'resourceName' => 'tax_rules_group'
+				)
+			),
 		),
 	);
 
diff --git a/classes/Product.php b/classes/Product.php
index 3f2c62168..a7b1d4f89 100644
--- a/classes/Product.php
+++ b/classes/Product.php
@@ -321,6 +321,13 @@ class ProductCore extends ObjectModel
 					'resourceName' => 'combinations'
 				)
 			),
+			'id_tax_rules_group' => array(
+				'getter' => 'getIdTaxRulesGroup',
+				'setter' => 'setTaxRulesGroup',
+				'xlink_resource' => array(
+					'resourceName' => 'tax_rules_group'
+				)
+			),
 			'position_in_category' => array(
 				'getter' => 'getWsPositionInCategory',
 				'setter' => false